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公开(公告)号:US07864735B2
公开(公告)日:2011-01-04
申请号:US12343866
申请日:2008-12-24
申请人: Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong , Dong-Sheng Yu
发明人: Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong , Dong-Sheng Yu
IPC分类号: H04W4/00
CPC分类号: H04W36/18 , H04B7/022 , H04L1/0618 , H04L5/0007 , H04L5/0023 , H04L5/0025 , H04L5/0037 , H04L5/0044 , H04L5/0048 , H04L25/0232 , H04L27/2613 , H04L27/2626 , H04L27/2647 , H04L27/2655
摘要: The present invention relates to soft handoffs in an OFDM system. Each mobile terminal measures pilot signal strengths of transmissions from adjacent base stations. If the pilot signal strength for a base station exceeds the defined threshold, that base station is added to an active set list. Each mobile terminal notifies the base stations of their active set lists. By providing the set list to the base station controller and the servicing base station, the mobile terminal identifies the sole servicing base station or triggers a soft handoff mode when multiple base stations appear on the active set list. The soft handoff mode uses a combination of scheduling and space-time coding to affect efficient and reliable handoffs.
摘要翻译: 本发明涉及OFDM系统中的软切换。 每个移动终端测量来自相邻基站的传输的导频信号强度。 如果基站的导频信号强度超过定义的阈值,则该基站被添加到活动集列表中。 每个移动终端向基站通知其活动集列表。 通过将设置列表提供给基站控制器和服务基站,移动终端识别唯一服务基站,或者当多个基站出现在活动集列表上时触发软切换模式。 软切换模式使用调度和时空编码的组合来影响有效和可靠的切换。
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公开(公告)号:US07103325B1
公开(公告)日:2006-09-05
申请号:US10116896
申请日:2002-04-05
申请人: Ming Jia , Jianglei Ma , Peiying Zhu , Dong-Sheng Yu , Wen Tong
发明人: Ming Jia , Jianglei Ma , Peiying Zhu , Dong-Sheng Yu , Wen Tong
CPC分类号: H04L27/2614 , H04B7/0619 , H04B7/0669 , H04B7/0673 , H04L1/0003 , H04L1/0009 , H04L1/005 , H04L1/0057 , H04L1/0066 , H04L1/0067 , H04L1/0071 , H04L1/0625 , H04L1/0656 , H04L25/03866
摘要: The present invention selects a space-time encoding mode to use when transmitting with spatial diversity based on the receive diversity associated with a receiver device and the quality of the transmission channels based on information fed back from the receiver device. The selectable space-time encoding modes are preferably space-time transmit diversity encoding and a version of BLAST-type encoding. Further, modulation modes, error encoding rates, or a combination thereof, may also be based on the quality of the transmission channels and the available diversity of the receiver device.
摘要翻译: 本发明基于基于与接收机装置相关联的接收分集和基于从接收机装置反馈的信息的传输信道的质量来选择使用空间分集进行发送时使用的时空编码模式。 可选择的时空编码模式优选是时空发射分集编码和BLAST型编码的版本。 此外,调制模式,错误编码率或其组合也可以基于传输信道的质量和接收机设备的可用分集。
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公开(公告)号:US08948799B1
公开(公告)日:2015-02-03
申请号:US12491708
申请日:2009-06-25
申请人: Hua Xu , Dong-Sheng Yu , Ming Jia , Jianglei Ma
发明人: Hua Xu , Dong-Sheng Yu , Ming Jia , Jianglei Ma
IPC分类号: H04B17/00 , H04B15/00 , H04M1/00 , H04B1/38 , H04B3/46 , H04Q1/20 , H04B14/04 , H04B1/10 , G01R31/08 , G06F11/00 , G08C15/00 , H04J1/16 , H04J3/14 , H04L1/00 , H04L12/26
CPC分类号: H04B17/336 , H04B1/10 , H04B1/38 , H04B7/0413 , H04B7/0632 , H04B7/0689 , H04B15/00 , H04B17/00 , H04L1/00 , H04L1/0003 , H04L1/0009 , H04L1/0019 , H04L1/0026 , H04L43/0823 , H04Q1/20 , H04W24/00
摘要: A method and apparatus are provided for a wireless communication system including a base station and at least one user equipment. A Channel Quality Indicator (CQI) table can be generated so that only an index corresponding to the measured CQI needs to be fed back to the base station. The CQI tables proposed herein may be suitable to different channel statistics, different Multiple Input Multiple Output (MIMO) mode and may be optimized based on either performance or implementation complexity. Multiple CQI tables may be formed into one compound CQI table. The CQI tables may be stored at both a base station and user equipment. The base station can select a CQI table from the set of tables. The base station signals the selection of the CQI table to the user equipment and the user equipment feeds back indices from the selected CQI table to the base station.
摘要翻译: 提供了一种用于包括基站和至少一个用户设备的无线通信系统的方法和装置。 可以生成信道质量指示符(CQI)表,使得仅将与测量的CQI相对应的索引需要反馈给基站。 这里提出的CQI表可以适用于不同的信道统计,不同的多输入多输出(MIMO)模式,并且可以基于性能或实现复杂度进行优化。 可以将多个CQI表形成为一个复合CQI表。 CQI表可以存储在基站和用户设备两者处。 基站可以从该组表中选择CQI表。 基站向用户设备通知CQI表的选择,并且用户设备将索引从所选择的CQI表反馈到基站。
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公开(公告)号:US20130034007A1
公开(公告)日:2013-02-07
申请号:US13588674
申请日:2012-08-17
申请人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
发明人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
CPC分类号: H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
摘要: Systems and methods for OFDM channelization are provided that allow for the co-existence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided, and systematic channel definition and labeling schemes are provided.
摘要翻译: 提供了用于OFDM信道化的系统和方法,其允许子带信道和分集信道的共存。 提供了确定分集子信道和子带子信道的方法,并提供了系统信道定义和标签方案。
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公开(公告)号:US08315225B2
公开(公告)日:2012-11-20
申请号:US13068836
申请日:2009-09-21
申请人: Hua Xu , Jianglei Ma , Dong-Sheng Yu , Ming Jia , Aaron Callard , Mohammadhadi Baligh
发明人: Hua Xu , Jianglei Ma , Dong-Sheng Yu , Ming Jia , Aaron Callard , Mohammadhadi Baligh
IPC分类号: H04W72/00
CPC分类号: H04L5/005 , H04B7/0413 , H04B7/0684 , H04B7/0691 , H04L5/0023 , H04L5/0051
摘要: A method of operation of a MIMO transmitter, in a cellular network supporting both legacy standard-compliant mobile terminals and next generation standard-compliant mobile terminals, the method comprising defining a matrix of resource blocks within an information channel of the cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency subband; assigning a first set of reference signals (RSs) for the legacy standard-compliant mobile terminals to resource blocks at specific locations within the matrix to be transmitted by the MIMO transmitter, the specific locations being defined by, the legacy standard; and assigning a second set of RSs for the next-generation standard-compliant mobile terminals to other resource blocks within the matrix to be transmitted by the MIMO transmitter.
摘要翻译: 一种在支持传统标准兼容移动终端和下一代标准兼容移动终端的蜂窝网络中的MIMO发射机的操作方法,所述方法包括定义蜂窝网络的信息信道内的资源块矩阵,其中每个 资源块对应于给定频率子带处的传输时隙的子载波的区域; 将传统标准兼容移动终端的第一组参考信号(RS)分配给由MIMO发射机发送的矩阵内的特定位置处的资源块,所述特定位置由传统标准定义; 以及将下一代标准兼容移动终端的第二组RS分配给由MIMO发射机发送的矩阵内的其他资源块。
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公开(公告)号:US20090060081A1
公开(公告)日:2009-03-05
申请号:US11887114
申请日:2006-03-30
申请人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
发明人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
IPC分类号: H04B7/02
CPC分类号: H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
摘要: Systems and methods for OFDM channelization are provided that allow for the co-existence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided, and systematic channel definition and labeling schemes are provided.
摘要翻译: 提供了用于OFDM信道化的系统和方法,其允许子带信道和分集信道的共存。 提供了确定分集子信道和子带子信道的方法,并提供了系统信道定义和标签方案。
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公开(公告)号:US08842514B2
公开(公告)日:2014-09-23
申请号:US13588674
申请日:2012-08-17
申请人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
发明人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
CPC分类号: H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
摘要: Systems and methods for OFDM channelization are provided that allow for the co-existence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided, and systematic channel definition and labeling schemes are provided.
摘要翻译: 提供了用于OFDM信道化的系统和方法,其允许子带信道和分集信道的共存。 提供了确定分集子信道和子带子信道的方法,并提供了系统信道定义和标签方案。
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公开(公告)号:US08274880B2
公开(公告)日:2012-09-25
申请号:US11887114
申请日:2006-03-30
申请人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
发明人: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
CPC分类号: H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
摘要: Systems and methods for OFDM channelization are provided that allow for the co-existence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided, and systematic channel definition and labeling schemes are provided.
摘要翻译: 提供了用于OFDM信道化的系统和方法,其允许子带信道和分集信道的共存。 提供了确定分集子信道和子带子信道的方法,并提供了系统信道定义和标签方案。
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公开(公告)号:US09974060B2
公开(公告)日:2018-05-15
申请号:US12677438
申请日:2008-09-11
申请人: Robert Novak , Mo-Han Fong , Sophie Vrzic , Jun Yuan , Dong-Sheng Yu , Jianglei Ma
发明人: Robert Novak , Mo-Han Fong , Sophie Vrzic , Jun Yuan , Dong-Sheng Yu , Jianglei Ma
CPC分类号: H04W72/0413 , H04L1/1812 , H04L5/0007 , H04L5/0055 , H04W52/365 , H04W72/04
摘要: Methods, base stations and access terminals for uplink signalling are provided. Resource request channel characteristics such as location in time-frequency, sequence, time slot, are assigned to each access terminal to distinguish their resource requests from the resource requests of other access terminals. Access terminals make requests using a resource request on a resource request channel having the assigned characteristics. The base station can then determine which access terminal transmitted the resource request based on the resource request channel characteristics of the resource request channel upon which the resource request was received. The base station then transmits a response to the request which may for example be a new resource allocation, a default allocation or a renewal of a previous allocation.
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公开(公告)号:US08971269B2
公开(公告)日:2015-03-03
申请号:US13620418
申请日:2012-09-14
CPC分类号: H04W72/0413 , H04L5/0057 , H04L27/26 , H04W56/0005 , H04W72/02 , H04W72/0453 , H04W88/08
摘要: A method for an SS to perform network entry in a multi-carrier wireless environment that has a primary carrier and at least one secondary carrier associated with a BS, the method comprising: a. sensing a carrier in an area serviced by the BS; b. determining if the carrier is a primary carrier or a secondary carrier; and c. performing the network entry if the determining establishes that the sensed carrier is a primary carrier and not a secondary carrier.
摘要翻译: 一种SS在多载波无线环境中执行网络入口的方法,所述多载波无线环境具有主载波和与BS相关联的至少一个次载波,所述方法包括:a。 感测由BS服务的区域中的载体; b。 确定载体是主载体还是辅助载体; 和c。 如果确定确定感测到的载波是主载波而不是辅载波,则执行网络条目。
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